What Engines Make the Most Torque/Liter?

"472CID" (472CID) 01/07/2015 at 11:43 • Filed to: None

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We all know the old horsepower/liter pissing contest, so what about the highest specific output for torque? To keep it simple lets stick to naturally aspired gas engines. Here's some of the front runners I've found:

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SidewaysOnDirt still misses Bowie > 472CID 01/07/2015 at 11:48

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No diesels? They'll trump all of these gas engines.

Leon711 > 472CID 01/07/2015 at 11:49

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Dacia Sandero 1.5 dci 1.5l 162lb/ft

tq/l 108.0

ignore, it's a turbodiesel.

Smallbear wants a modern Syclone, local Maple Leafs spammer > 472CID 01/07/2015 at 11:49

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The last 2 columns don't make sense to me- what's going on there?

BiTurbo228 - Dr Frankenstein of Spitfires > 472CID 01/07/2015 at 11:51

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The 1977 Aston Martin V8 Vantage make a stonking 102.8lb-ft/l from a 5.3l NA V8 :)

jlmounce > 472CID 01/07/2015 at 11:52

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Realistically and especially with torque you probably want to show average torque, not peak torque. Interesting study though. I like the Poncho 455. It doesn't have the highest specific output torque here based on advertised numbers of 500 ft lbs at 64.96 torque per liter, but it does make that number basically off idle to 5500 rpm.

SantaRita > 472CID 01/07/2015 at 11:52

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you do a great disservice sticking to NA. the real fun in in boosted cars.

Saab B235R 2.3L 270Lbft of torque at 1900 rpms.
117.4 lbft per litre in a family sedan.

Brian, The Life of > 472CID 01/07/2015 at 11:53

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Ford's 1L EcoBoost: 148lbs of torques.

Check and Mate.

472CID > Smallbear wants a modern Syclone, local Maple Leafs spammer 01/07/2015 at 11:53

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The 3rd column is what happens when you divide the torque figure (column 2) by the displacement figure (column 1). The 4th is the rpm said torque occurs at, I didn't label it because it's a pain in the but to edit tables.

MultiplaOrgasms > 472CID 01/07/2015 at 11:54

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Daihatsu Copen: 659cc, 81lb-ft

tq/l: 122.91

472CID > Leon711 01/07/2015 at 11:55

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Best torque/liter for turbo diesels would be cool as well, but ain't nobody got time for that.

themanwithsauce - has as many vehicles as job titles > 472CID 01/07/2015 at 11:56

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E36 AMG mercedes - 3.6L I-6, 284 lb/3.6L = 78.89 lb/L

crowmolly > Brian, The Life of 01/07/2015 at 11:58

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He said NA

Leon711 > 472CID 01/07/2015 at 11:58

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true dat, some surprises too a q7 v12 tdi is 122 tq/l but a 120d is 140 tq /l

472CID > SidewaysOnDirt still misses Bowie 01/07/2015 at 11:58

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naturally aspired diesel would have no chance against NA gas. I don't think turbo diesels would beat turbo gas either. I welcome being proved wrong though.

Smallbear wants a modern Syclone, local Maple Leafs spammer > 472CID 01/07/2015 at 12:00

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Ahh. K.

472CID > jlmounce 01/07/2015 at 12:00

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True, how early and flat the torque curve are the best measure, unfortunately there isn't a nice easy number for that. I'm not sure I'd say 5500rpm is 'just off idle'...

crowmolly > 472CID 01/07/2015 at 12:01

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1550 lb-ft from 16L

472CID > BiTurbo228 - Dr Frankenstein of Spitfires 01/07/2015 at 12:03

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Are you using Nm? I'm getting 406lb-ft which puts them at 76.6lb-ft/L not bad though.

Nibby > 472CID 01/07/2015 at 12:10

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Toyota's 5.7L V8 in trucks offers 400 lb-ft of torque ... so that's 70.18

BiTurbo228 - Dr Frankenstein of Spitfires > 472CID 01/07/2015 at 12:10

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Ah my mistake :S the E46 M3 is rather good, and so's the Cerbera Speed 8 4.5l :)

MultiplaOrgasms > 472CID 01/07/2015 at 12:19

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2nd try. Mazda R26b: 448lb-ft from 2622cc => 170lb-ft/l

472CID > themanwithsauce - has as many vehicles as job titles 01/07/2015 at 12:20

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That's more than the modern AMG V8s

Dan F > 472CID 01/07/2015 at 12:30

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GLA 45 AMG wins outright, i think.

332 ft/lb in 2.0L

166ft/lb/L

Dan F > Dan F 01/07/2015 at 12:31

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He Said NA, so I'm an idiot.

Saracen > 472CID 01/07/2015 at 12:53

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turbodiesels would totally trounce turbo gas...

Mercedes E250 Bluetec...2.1 liters, 369 lb-ft.

Saracen > 472CID 01/07/2015 at 12:56

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Mazda RX8.

1.3 liters, 152 lb-ft = 117

Manuél Ferrari > 472CID 01/07/2015 at 13:07

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my E46 made the top 3!

Who hoo!

Brian, The Life of > crowmolly 01/07/2015 at 13:07

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DAMMIT!

Never mind ...

Saracen > SantaRita 01/07/2015 at 13:09

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This is just an exercise. and it's more interesting when trying to do it with n/a engines.

472CID > Saracen 01/07/2015 at 13:11

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Ok that's some freak of nature stuff right there. A similar freak of nature though, is the lag-tastic Mitsubishi Evo FQ400's 400lb-ft out of a 2 liters. Even the normal Evo beats most turbo diesels I've found.

Saracen > 472CID 01/07/2015 at 13:13

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That's practically a tuner car.

Compare the spectrum of oem turbodiesels as a whole, and they win.

DrScientist > 472CID 01/07/2015 at 13:30

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in pharmacology (and maybe some physics disciplines as well) there is a measure called "area under the curve" or AUC.

this would be the "easiest" number that would describe what we want. unfortunately, we'd have to track down all of the curves for each of these cars, which would probably not be the easiest exercise.

Tekamul > 472CID 01/07/2015 at 13:44

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OMC 2 stroke V8 : 3.6L, 340 ft-lb

94 tq/L

I think the real outliers are going to be 'unique' NA configurations. Rotary, 2 stroke, gas with meth injection. All the 'rule benders' for this test.

thejoemeyer > 472CID 01/07/2015 at 13:48

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Porsche 918, 398 lb-ft from just the 4.6L NA engine. 398/4.6 = 86.52 (lb-ft)/L

SantaRita > Saracen 01/07/2015 at 14:30

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2006 2.4 litre Formula one Toyota RVX-06 V8 engine produces 552 kW (740 bhp) at 19,000 rpm and outputs 274 Nm of torque.

2.4L/200lbft

83.3 lbft/litre

kindof a letdown for 'pinnacle' engineering for it to score closer to a mustang than a ferrari but understandable given the car's weight and purpose.

matt miller > BiTurbo228 - Dr Frankenstein of Spitfires 01/09/2015 at 13:23

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i still would much rather have this aston.

DSM_OR_DIE::Drives_A_Miata > Saracen 01/09/2015 at 14:24

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Also whatever engine is in the M550D. 3 liters and something around 500 torques. That engine is badass.

EtrnL_Frost > Saracen 01/09/2015 at 14:29

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Bah, that's beans. http://www.gizmag.com/bmw-adds-four-…

How about 546 lbs/ft over a 3 litre? At 2krpm.

Granted, I have no idea on the plateau on your admittedly nice Merc diesel there.

EtrnL_Frost > 472CID 01/09/2015 at 14:31

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Just did a quick search, http://www.autoblog.com/2009/05/26/off… cites the FQ400 as 387 lb/ft at 3.5krpm :)

Edit: Wow, that bluetec - http://autoweek.com/article/car-re… cited at 369 lb/ft at 1.6krpm. That's awesome.

EtrnL_Frost > themanwithsauce - has as many vehicles as job titles 01/09/2015 at 14:35

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I read this and it hurt my head. You mean E63? Because I had an E36 M3, and it was US and didn't have the gobs of power our European brethren promised us.

EDIT: I see the displacement you noted was indeed 3.6L. I did not know that Mercedes had an E36! TO THE INTERWEBS FOR RESEARCH

themanwithsauce - has as many vehicles as job titles > EtrnL_Frost 01/09/2015 at 14:47

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Mmmmmmhmmmm. I autocross with a guy who has a black one. An absolute beauty of a car. It hustles decently well too.

RotaryLove > 472CID 01/09/2015 at 15:23

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"basically off idle to 5500 rpm." Meaning it has pretty much the same torque from 800 rpm to 5500 rpm

Blodørn > 472CID 01/10/2015 at 05:32

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Renault 1.6 dCi Twin-Turbo => 189lbs-ft per litre. Stock.
No chance for a Diesel you said? That's exactly the opposite.

Beresford > 472CID 11/28/2017 at 02:56

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The Opel Kadett E GSi S (stands for Superboss) 16v held the world record for the most torque per litre (114 Nm per litre) for a naturally aspirated car until 2009 being beaten by the Ferrari 458 (117 Nm per litre).

Boom there you go! 4 banger FTW!

Reference: https://en.wikipedia.org/wiki/Opel_Kadett